g-c3n4-zno/HNTs composite photocatalyst, preparation method therefor and application thereof
A g-c3n4-zno, composite light technology, applied in physical/chemical process catalysts, chemical instruments and methods, chemical/physical processes, etc., can solve problems such as human health threats, soil and water pollution, hidden dangers, etc., to achieve green Environmentally friendly and efficient pollution treatment technology, the effect of increasing specific surface area and improving efficiency
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[0030] Example 1:
[0031] (1) Preparation of ZnO / HNTs precursor:
[0032] Weigh 0.04gZn(NO 3 ) 2 ·6H 2 Put O (zinc nitrate hexahydrate) into a glass beaker, add 500mL deionized water to completely dissolve it, magnetically stir, then add 1.0g halloysite nanotubes, stir and heat to evaporate to dryness, put the obtained solid into an agate mortar Grind to powder, put it in a muffle furnace, and calcinate at 400°C for 3 hours. The resulting solid is the ZnO / HNTs precursor;
[0033] (2)g-C 3 N 4 -Preparation of ZnO / HNTs composite photocatalyst:
[0034] Weigh 0.212g of melamine into a glass beaker, add ethanol to heat, and stir magnetically; then add 1.0g of the ZnO / HNTs precursor prepared in step (1) to the above mixed solution, stir fully magnetically and heat to dry, and a solid will be obtained Grind to powder, calcinate in a muffle furnace at 520°C, let it cool naturally to room temperature, take it out and grind, the solid powder obtained is gC 3 N 4 -ZnO / HNTs composite photocata...
Example Embodiment
[0036] Example 2:
[0037] (1) Preparation of ZnO / HNTs precursor:
[0038] Weigh 0.12gZn(NO 3 ) 2 ·6H 2 Put O (zinc nitrate hexahydrate) into a glass beaker, add 500mL deionized water to completely dissolve it, magnetically stir, then add 1.0g halloysite nanotubes, stir and heat to evaporate to dryness, put the obtained solid into an agate mortar Grind to powder, put it in a muffle furnace, and calcinate at 400°C for 3 hours. The resulting solid is the ZnO / HNTs precursor;
[0039] (2)g-C 3 N 4 -Preparation of ZnO / HNTs composite photocatalyst:
[0040] Weigh 0.212g of melamine into a glass beaker, add ethanol to heat, and stir magnetically; then add 1.0g of the ZnO / HNTs precursor prepared in step (1) to the above mixed solution, stir fully magnetically and heat to dry, and a solid will be obtained Grind to powder, calcinate in a muffle furnace at 520°C, let it cool naturally to room temperature, take it out and grind, the solid powder obtained is gC 3 N 4 -ZnO / HNTs composite photocata...
Example Embodiment
[0042] Example 3:
[0043] (1) Preparation of ZnO / HNTs precursor:
[0044] Weigh 0.20gZn(NO 3 ) 2 ·6H 2 Put O (zinc nitrate hexahydrate) into a glass beaker, add 500mL deionized water to completely dissolve it, magnetically stir, then add 1.0g halloysite nanotubes, stir and heat to evaporate to dryness, put the obtained solid into an agate mortar Grind to powder, put it in a muffle furnace, and calcinate at 400°C for 3 hours. The resulting solid is the ZnO / HNTs precursor;
[0045] (2)g-C 3 N 4 -Preparation of ZnO / HNTs composite photocatalyst:
[0046] Weigh 0.212g of melamine into a glass beaker, add ethanol to heat, and stir magnetically; then add 1.0g of the ZnO / HNTs precursor prepared in step (1) to the above mixed solution, stir fully magnetically and heat to dry, and a solid will be obtained Grind to powder, calcinate in a muffle furnace at 520°C, let it cool naturally to room temperature, take it out and grind, the solid powder obtained is gC 3 N 4 -ZnO / HNTs composite photocata...
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